Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0effeaf85ab614ca17252ee0abdf219a71ad27429ea78a28489bc58749ed7150' 
  AND token = '+Rx5hUHcsUoxBJ9AE41Of3kIsm6t86AZesKZv2AIjjQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}